公开(公告)号：EP0196605A3

公开(公告)日：1988-03-30

申请号：EP86104099

申请日：1986-03-25

Applicant: KABUSHIKI KAISHA TOSHIBA ,  Toshiba Computer Engineering Corporation

Inventor： Okamura, Hiroshi c/o Patent Division ,  Kusunoki, Masahiro c/o Patent Division ,  Saito, Toshiya c/o Patent Division ,  Ohashi, Hiroshi c/o Patent Division

IPC: G11B05/127 ,  G11B05/265 ,  G11B05/10 ,  G11B05/48 ,  G11B05/012 ,  G11B05/29

CPC classification number: G11B5/2654 ,  G11B5/012 ,  G11B5/10 ,  G11B5/127 ,  G11B5/4886

Abstract: A magnetic head assembly (32) comprising first and second core assemblies (37, 39) of different types and properties. The first core assembly (37) is of a leading erase type for the perpendicular magnetic recording system, while the second one (39) is of a tunnel erase type for the longitudinal magnetic recording system. These core assemblies (37, 39) are arranged on either side of a slider groove (36). When used with the dopble-sided recording system, they are both located on one side of the alider groove.

Abstract translation: 一种磁头组件（32），包括不同类型和特性的第一和第二芯组件（37,39）。 第一核心组件（37）是用于垂直磁记录系统的主要擦除类型，而第二核心组件（37）是用于纵向磁记录系统的隧道擦除类型。 这些核心组件（37,39）布置在滑块槽（36）的任一侧上。 当与双面记录系统一起使用时，它们都位于锯齿槽的一侧。

公开(公告)号：EP0171957A3

公开(公告)日：1987-10-14

申请号：EP85305327

申请日：1985-07-25

Applicant: AMPEX CORPORATION

Inventor： Gooch, Beverley R.

IPC: G11B05/49 ,  G11B05/245 ,  G11B05/127

CPC classification number: G11B5/4907 ,  G11B5/245 ,  G11B5/2452 ,  G11B5/53 ,  G11B5/588

Abstract: An electromagnetically controlled scanning magnetic transducer has two confronting magnetic core portions (21, 22) with poles defining a transducing gap (26). A control winding (38,39) is arranged in each core portion to provide a control flux therein. The control windings are arranged such that a steep magnetic permeability versus flux density characteristic across the transducer width is obtained. The control flux saturates a portion of each core at the transducer face adjacent to the gap. The saturated core portions define adjacent nonsaturated highly permeable core portions which overlap across the gap to obtain a transducing zone. The transducing zone can be altered, moved, scanned or otherwise positioned along the transducer width by electromagnetically controlling the saturated core portions.

公开(公告)号：EP0144862A3

公开(公告)日：1987-02-25

申请号：EP84114085

申请日：1984-11-22

Applicant: Kao Corporation

Inventor： Kishine, Nobuyuki ,  Imamura, Tetsuya ,  Minami, Hideyuki

IPC: G11B05/127 ,  G11B05/31 ,  G11B05/187 ,  G11B05/255

CPC classification number: G11B5/1278 ,  G11B5/255 ,  G11B5/3106

Abstract: The invention concerns a magnetic head for recording and reading out of a magnetic recording medium (1) in a perpendicular magnetic recording system covered on its surface which is close to the recording medium (1) with glasslike carbon material (16) so as to improve lubrication property with the recording medium (1) and prevent abrasion.

公开(公告)号：EP0206658A3

公开(公告)日：1988-10-19

申请号：EP86304509

申请日：1986-06-12

Applicant: HITACHI, LTD.

Inventor： Kumasaka, Noriyuki ,  Otomo, Shigekazu ,  Yamashita, Takeo Esuteto Tachikawa Ichibancho ,  Saito, Noritoshi

IPC: G11B05/147 ,  G11B05/127

CPC classification number: G11B5/147 ,  G11B5/127

Abstract: A magnetic head includes ferromagnetic amorphous alloy multi-layerfilms (16) each composed of an alternate lamination of ferromagnetic amorphous alloy layers (19) and magnetic spacer layers (20). The thickness of each ferromagnetic amorphous alloy layer (19) is of 1 µm to 10 µm. The thickness of each magnetic spacer layer (20) is of 0.01 µm to 0.2 µm. The ferromagnetic amorphous alloy multi-layer films (16) constitute at least parts of the head core.

Abstract translation: 磁头包括铁磁非晶合金多层膜（16），每个铁磁非晶合金多层膜由铁磁非晶合金层（19）和磁间隔层（20）的交替叠层组成。 每个铁磁非晶合金层（19）的厚度为1μm至10μm。 每个磁性间隔层（20）的厚度为0.01μm至0.2μm。 铁磁非晶合金多层膜（16）至少构成头芯的一部分。

公开(公告)号：EP0174144A3

公开(公告)日：1988-03-16

申请号：EP85306013

申请日：1985-08-23

Applicant: HITACHI, LTD.

Inventor： Otomo, Shigekazu ,  Kumasaka, Noriyuki ,  Imura, Ryo ,  Sugita, Yutaka ,  Suzuki, Ryo

IPC: G11B05/127 ,  H01F10/00 ,  G11C11/14

CPC classification number: H01F41/18 ,  G11B5/1278 ,  G11B5/147 ,  G11B5/1878 ,  G11B5/21 ,  G11B5/31 ,  G11B5/3163 ,  Y10S148/90 ,  Y10T29/49034

Abstract: lon implantation is conducted in a desired area(s) of the surface of a magnetic layer, and annealing of the layer is carried out to control the composition in that desired area(s). The control of the composition may be facilitated by applying a one-directional or rotating magnetic field during ion implantation. In preparing a magnetic head, a portion of a magnetic pole at least on one side thereof in close proximity to a magnetic recording medium is formed into an iron or iron-based magnetic alloy film, at least part of which is subjected to ion implantation and annealing.

公开(公告)号：EP0166210A3

公开(公告)日：1986-12-10

申请号：EP85106339

申请日：1985-05-23

Applicant: WILLI STUDER AG Fabrik für elektronische Apparate

Inventor： Zwicky, Paul

IPC: G11B05/127

CPC classification number: G11B5/127

公开(公告)号：EP0149281A3

公开(公告)日：1985-08-14

申请号：EP84201915

申请日：1984-12-19

Applicant: N.V. Philips' Gloeilampenfabrieken

Inventor： Gorter, Frederik Willem ,  Morel, Jean-Paul Germain René ,  Ruigrok, Jacobus Josephus Maria

IPC: G11B05/127 ,  G11B05/23 ,  G11B05/265

CPC classification number: G11B5/2652 ,  G11B5/1875

Abstract: A magnetic head is provided having a core of a soft-magnetic material with a comparatively low saturation magnetization and layers of a soft-magnetic material having a higher saturation magnetization than the material of the core on the gap-bounding faces. In order to avoid the detrimental effects of the non-magnetic transition zones between the material of the core and the layers of soft-magnetic material, which transition zones as it were form subsidiary gaps, the layers of soft-magnetic material on the gap-bounding faces have different thicknesses.

Abstract translation: 提供了一种磁头，其具有饱和磁化强度相对较低的软磁材料的磁芯和饱和磁化强度比间隙界定面上的磁芯材料更高的软磁材料层。 为了避免芯部材料与软磁材料层之间的非磁性过渡区域的不利影响，当它形成辅助间隙时，所述过渡区域在间隙形成层上的软磁材料层， 边界面具有不同的厚度。

公开(公告)号：WO1998025263A1

公开(公告)日：1998-06-11

申请号：PCT/IB1997001399

申请日：1997-11-06

Applicant: PHILIPS ELECTRONICS N.V. ,  PHILIPS NORDEN AB

Inventor： PHILIPS ELECTRONICS N.V. ,  PHILIPS NORDEN AB ,  LENSSEN, Kars-Michiel, Hubert

IPC: G11B05/127

CPC classification number: B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G11B5/00 ,  G11B5/127 ,  G11B5/245 ,  G11B5/31 ,  G11B5/3903 ,  G11B5/493 ,  G11B2005/3996 ,  G11C11/14 ,  G11C11/15 ,  H01F10/3254 ,  H01L29/82 ,  H01L43/08

Abstract: A magneto-electronic device comprising a substrate (1) on which a first body (21) and a second body (22) of magnetic material are provided, whereby the magnetization (M2) of at least the second body (22) is not fixed, the two bodies (21, 22) being substantially coplanar and mutually isolated, and being mutually connected via a layer (3) of semi-conductor material in which a quasi-two-dimensional electron gas can be generated.

Abstract translation: 一种包括基板（1）的磁电子装置，其上设置有第一主体（21）和第二主体（22），由此至少第二主体（22）的磁化（M2）不是固定的 两个主体（21,22）基本共面并相互隔离，并且经由可以产生准二维电子气的半导体材料的层（3）相互连接。

公开(公告)号：WO1997010591A1

公开(公告)日：1997-03-20

申请号：PCT/US1996014616

申请日：1996-09-11

Applicant: CENSTOR CORP.

Inventor： CENSTOR CORP. ,  CAIN, William, S. ,  ANDERSON, Richard, D. ,  BALDWINSON, Michael, A. ,  BERDING, Keith, R. ,  DEVILLIER, Michael, E. ,  GARRETTSON, Garrett, A. ,  GLUCK, Randolph, S. ,  HAMILTON, Harold, J. ,  HEMPSTEAD, Robert, D. ,  IMAI, Darren, T. ,  KIM, Kwang, K. ,  LATEV, Dimitre, A. ,  PAYNE, Alexander, P. ,  ROBERTS, David, D.

IPC: G11B05/127

CPC classification number: G11B5/3163 ,  G11B5/3106 ,  G11B5/3183

Abstract: A transducer (48) for a hard disk drive has a magnetic core (66) and a pair of poletips (44) that project transversely from the core for sliding contact with the disk during reading and writing. The transducer is formed entirely of thin films in the shape of a low profile table having three legs that slide on the disk, the poletips being exposed at a bottom of one of the legs for high resolution communication with the disk, the throat height of the poletips affording sufficient tolerance to allow for wear. The transducer includes a loop shaped core of magnetic material that ends at the poletips, the core extending further parallel than perpendicular to the disk surface. The dimensions of the yoke adjacent to the poletips are designed to avoid saturation at the poletips by saturating at a lower flux in the yoke than the poletips.

Abstract translation: 用于硬盘驱动器的换能器（48）具有磁芯（66）和一对从芯体横向突出的弹片（44），用于在读取和写入期间与盘滑动接触。 传感器完全由薄板形成，其具有在盘上滑动的三条腿的小型台，其中一条腿露出在一条腿的底部，用于与盘的高分辨率通信，喉部的高度 小腿提供足够的耐受性以允许磨损。 换能器包括磁性材料的环形磁芯，其终止于弹片，芯体比垂直于磁盘表面进一步平行。 靠近小翼的轭的尺寸被设计成通过在磁轭中的低通量饱和在poletips处避免饱和，而不是poletips。

公开(公告)号：WO1990007176A1

公开(公告)日：1990-06-28

申请号：PCT/EP1989001222

申请日：1989-10-16

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  STEPHANI, Dietrich

Inventor： SIEMENS AKTIENGESELLSCHAFT

IPC: G11B05/127

CPC classification number: G11B5/1278 ,  G11B5/3116 ,  G11B5/3163

Abstract: A thin-film head (2) contains a conductor of magnetic flux similar to an annular head with two magnetic arms (6, 7), which is partially embedded in a depression (12) in a non-magnetic substrate. Each arm (6, 7) has a magnetic layer (6a and 7a, respectively), which forms a magnetic pole (P1 and P2, respectively) at a pole point (8 and 9, respectively), and a magnetic amplification layer (6b and 7b, respectively). This magnetic head should be easy to manufacture and should allow high magnetic flux densities in its conductor. To this end, only the amplification layer (6b) in the magnetic arm (6) facing the substrate (12) is arranged in the depression (12) in the substrate (3) in such a way that its surface (13) lies in the same plane (E) as the surface (14) of the substrate.